YJIT: Add stats option to RubyVM::YJIT.enable #9297
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RubyVM::YJIT.enableis useful not only for lazily enabling YJIT but also for enabling YJIT in a subset of workers in a server.Similarly to that, I want to enable YJIT stats only in part of workers so that I can monitor
ratio_in_yjit, which is useful especially when the volume of traffic is very low and you use only one server. This could be also useful when you don't want to set up multiple clusters with different Ruby commands for that purpose.